CPC A61L 27/34 (2013.01) [A61L 31/10 (2013.01); C08G 18/61 (2013.01); C08G 18/6423 (2013.01); C08G 18/73 (2013.01); C08G 18/757 (2013.01); C08G 18/778 (2013.01); C09D 183/10 (2013.01); C08G 2150/00 (2013.01)] | 19 Claims |
1. A medical device having a surface containing a passivating coating, the passivating coating comprising a silicone polyurea copolymer having a polymer backbone and comprising a reaction product of:
(a) a diamine composition comprising a polyethylene glycol diamine compound having a formula (I), (II), or a combination of (I) and (II):
wherein y is an integer in the range of 2 to 40, and x+z is an integer in the range of 1 to 8; or
wherein n is an integer in the range of 1 to 100;
(b) a monofunctional silicone isocyanate compound having a formula:
wherein D is an alkyl radical having 1 to 6 carbon atoms,
G is a bivalent alkyl radical having 1 to 6 carbon atoms,
each R is independently selected from a monovalent alkyl radical having about 1 to about 12 carbon atoms, a substituted alkyl radical having about 1 to about 12 carbon atoms, a phenyl radical and a substituted phenyl radical, and
m is an integer in the range of 15 to 300; and
(c) a diisocyanate compound, wherein the silicone polyurea copolymer comprises total isocyanate groups to total amine groups in a molar ratio of 1.5:1 to 1.05:1.
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